WoRMS taxon details
Sigmavirgulina Loeblich & Tappan, 1957
112183 (urn:lsid:marinespecies.org:taxname:112183)
accepted
Genus
Bulimina (Bolivina) tortuosa Brady, 1881 accepted as Sigmavirgulina tortuosa (Brady, 1881) (type by original designation)
marine, brackish, fresh, terrestrial
recent + fossil
feminine
Loeblich, A. R.; Tappan, H. (1957). Eleven New Genera of Foraminifera. <em>Bulletin United States National Museum.</em> 215: 223-232., available online at https://www.biodiversitylibrary.org/page/32376730
page(s): p. 227 [details]
page(s): p. 227 [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Sigmavirgulina Loeblich & Tappan, 1957. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=112183 on 2024-08-19
Date
action
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The webpage text is licensed under a Creative Commons Attribution 4.0 License
original description
Loeblich, A. R.; Tappan, H. (1957). Eleven New Genera of Foraminifera. <em>Bulletin United States National Museum.</em> 215: 223-232., available online at https://www.biodiversitylibrary.org/page/32376730
page(s): p. 227 [details]
basis of record Gross, O. (2001). Foraminifera, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 60-75 (look up in IMIS) [details]
additional source Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors
[request]
additional source Revets, S. A. (1996). The generic revision of five families of Rotaliine Foraminifera - Part 1. The Bolivinitidae Cushman, 1927. <em>Cushman Foundation for Foraminiferal Research, Special Publication.</em> 1-55., available online at https://cushmanfoundation.allenpress.com/Portals/_default/SpecialPublications/sp34.pdf [details] Available for editors
[request]
page(s): p. 227 [details]
basis of record Gross, O. (2001). Foraminifera, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 60-75 (look up in IMIS) [details]
additional source Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors
![PDF available PDF available](https://www.marinespecies.org/aphia/images/pdf_lock.png)
additional source Revets, S. A. (1996). The generic revision of five families of Rotaliine Foraminifera - Part 1. The Bolivinitidae Cushman, 1927. <em>Cushman Foundation for Foraminiferal Research, Special Publication.</em> 1-55., available online at https://cushmanfoundation.allenpress.com/Portals/_default/SpecialPublications/sp34.pdf [details] Available for editors
![PDF available PDF available](https://www.marinespecies.org/aphia/images/pdf_lock.png)
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From editor or global species database
Diagnosis Test flaring, compressed, biserial throughout, early chambers added slightly more than 180¡ apart, resulting in a sigmoid alignment of chambers that at first form a tight low spire, later biserial chambers of increasing relative breadth resulting in a widening test and added more nearly in a single plane, periphery acutely angled or carinate, sutures slightly depressed; wall calcareous, of calcite by X-ray determination, optically granular, coarsely perforate, surface smooth or early stage may have short spinules; aperture an elongate oval at the inner margin of the final chamber, surrounded by a lip that grades laterally into the marginal keel, more rarely closed basally so that the opening is subterminal, situated a short distance above the chamber base, and provided with a simple twisted and flaring toothplate. Miocene to Holocene; cosmopolitan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]